Adjustable bed and locking means therefor.



. W. l. CUR'HS.

ADJUSTABLE BED AND LOCKING mums memos.

APPLICATION nLs-n 001.22. 191?.

Patented Aug 27, 1918;

J. cums ADJUSTABLE BED AND LOCKWG MEANS THEREEOR. APPLICATION FILED ocT. 22. l9l1.

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WILLIAM J. CURTIS, 0F WILMINGTON, DELAWARE, ASSIGNOR T0 NATIONAL ADJUST- ABLE BED AND SPRING COMPANY, or WILMINGTON, DELAWARE.

ADJUSTABLE BED AND LOCKING MEANS THEREFOR.

Specification of Letters Patent.

Patented Au 27,1918.

Application filed October 22, 1917. Serial No. 197,801).

To all whom it may concern.

Be it known that I, WILLIAM J. CURTIS. a citizen of the United States, residing at \Vilmington, in the county of- New Castle and State of Delaware, have inventedcertain new and useful Improvements in Adjustable Beds and Looking Means Therefor, of which the following is a specification.

The present invention relates to improvements in that type of bedstead embodying adjustable sections especially designed for.

the comfort of invalids, and more particularly to locking mechanism for such sections whereby they may be adjusted and held in ditlerent positions.

The object and advantages of the invention will be apparent by reference to the following description and claim, when read in connection with the annexed drawings, wherein I Figure 1 is a fragmentary view of a bedstead frame having my present invention applied thereto and shown in elevation;

Fig. is a sectional view looking at one of the locking arrangements from the side opposite that shown in Fig. 1;

Fig. 8 is a vertical sectional view on the line of Fig. 2;

Fig. 4 is a horizontal sectional View on the line -1-'l of Fig. 2;

Fig. 5 is a perspective View of the locking bolt keeper or retainer;

Fig. 6 is a perspective view of the special form of operating lever for the locking bolt; and

Fig. 7 is a perspective View of the locking bolt and spring.

The type of bedstead to which this invention is particularly adapted is disclosed clearly in my previous Patent No. 1,059,842, granted April 22, 1913, and embodies the main frame 1, the sub-frame 2 supported by the hangers 8 and an adjustable section at pivotally connected at either end on the brace rod 5. The frame construction of the bedstead is preferably of angle iron which affords the required rigidity for devices of this character. The end or adjustable sections 1 are of the customary U-shaped form, the extremities of the side members, however, being provided with arm 4: extending downwardly in contiguous relation to an apertured segment or plate 6 which is suitably attached to the sides of the frame 1 by fastening members 7.' A special featureof.

formation of the armsd is the provision of an upturned flange 8 which engages about the edge of the arcuate segment plate 6 and tends to hold the parts in proper relation against displacement from strains incident to the application of stress to the plates through the locking means now to be described.

Attached to each of the downwardly extending arms 1 of the adjustable bed section or sections is a keeper or retainer 9 most clearly shown in Fig. 5 of the drawings, this element being U-shaped in formation and having an aperture 10 through which the shank of the locking bolt or locking-member 11 projects. The arm 4: is provided with an aperture through which the head of the bolt 11 projects for engagement with the series of openings 12 in the segment plate 6. r A spring 13 surrounds the shank of the looking bolt and is held in place by the retainer 9, normally holding the bolt in looking engagement. As will be noted in Figs. AL and 5, the retainer is formed with a laterallyprojecting extension 141 upon which is pivotally mounted a special form of bell crank lever 15. This retainer, locking bolt and crank lever form an assembly unit adapted for attachment as a unit to the adjustable section, thereby facilitating the manufacture of the bed. This last mentioned member is pr0- vided with a vertically disposed arm 15' havin a bifurcation 16 en 'a in about the ent hereinbefore referred to and consisting of a pivoted lever connected to the end of theadjustable section as indicated at 18, one end of which cooperates with a manually operable cam 19, the other end thereof being connected to the lever 15 by some flexible connection 20.

It will be obvious from the foregoing, description that the inclination or adjustment of an end section 4 may be accomplished by manipulation of the connection with the lever 15 in such manner as to cause the latter to withdraw the bolt from the segment plate 6. Release of the manipulativeconnection will permit the bolt to automatically reengage with its locking plate in the usual manner.

Having thus described my invention, Wha I claim as new is In a bedstead of the classdescribed, amain frame, locking segments attached to said main frame at either side, an adjustable Section of substantially U-shape pivotally connected to the main frame, the end portions thereof being bent downwardly adjacent to the pivot to form supporting arms, locking means mounted on each of said arms comprising a 'U-shaped keeper secured to the inner face, a spring actuated locking bolt mounted in the keeper and projecting through the arm, said keeper having a supporting extension projecting therefrom, a lever pivoted to said extension for retracting the bolt, and a flexible actuating con-nection extending from said lever to the end of the adjustable section for unlocking the bolt to permit of adjustment of said section.

In testimony whereof I aflix my signature.

\VILLIAM J. CURTIS.

Copies of thisrpatent may be obtained for five centsieac'h, by addressing the Commissioner of Patents,

Washington, D. 0. 

